Update block and deactivate users links

Following changes made in gitlab!61292 (merged)

Change references to /ee/user/admin_area/blocking_unblocking_users and /ee/user/admin_area/activating_deactivating_users to ee/user/admin_area/moderate_users.html#blocking_unblocking_users and ee/user/admin_area/moderate_users.html#activating_deactivating_users